Description
This is a compact thermostatic radiator valve (TRV) pack intended for corner-mounted radiator connections. It combines a liquid-filled thermostatic head with a reversible angled valve body and a matching corner lockshield, finished in an anthracite powder coat so it suits contemporary radiators and towel rails. The TRV head provides a simple graduated control (0–5) that corresponds to an approximate room temperature range, while the valve body is reversible so the same pack can be used on flow or return pipes and mounted horizontally or vertically.
Key specifications
- Temperature control range: approximately 7°C to 28°C (graduated scale 0–5; frost protection below 7°C)
- Pipe connection: designed for 15 mm pipework (10 mm reducer kit included)
- Thread/radiator connection: standard 1/2″ BSP tails
- Maximum working pressure: 10 bar; maximum water flow temperature: 110°C
- Finish: anthracite powder coat on brass valve body
How it works and where it fits
Thermostatic radiator valves automatically regulate hot-water flow to a radiator to maintain the chosen room temperature. The liquid sensor inside the TRV head expands or contracts as air temperature changes and moves the valve pin to reduce or increase flow. This pack is aimed at homeowners and installers fitting radiators where the pipework meets the radiator at an angle (corner), and where a dark anthracite finish is preferred to chrome or white. It’s especially suitable for modern upright radiators and heated towel rails where an anthracite valve will match the radiator or interior fittings.
Installation and compatibility
The pack is supplied to suit standard domestic pipework: two 1/2″ BSP tails for the radiator spigot and compression fittings for 15 mm pipe, plus a 10 mm reducing kit if your system uses smaller bore pipe. The valve body is reversible so you can fit it for flow or return service and orient the head vertically or horizontally to suit the available space. That flexibility makes it useful in tight corners or where the radiator inlet is close to a wall.
It’s a mechanical, room-mounted control rather than an electronic or smart head — you set a number on the head and the valve holds the room at the corresponding temperature. The pack includes a matching corner lockshield and decorator caps to seal the valve when the radiator is removed for decorating or maintenance.
Performance, limits and practical points
The TRV uses a liquid-filled sensor for accurate, stable control and is designed to meet common domestic standards. Technically, the valve is rated for a maximum working pressure of 10 bar and a maximum water temperature of 110°C. There is also a specified maximum differential pressure across the valve (1 bar), so it’s worth checking the operating pressure and system pump settings on very high-performance systems — very large pressure differentials can affect TRV behaviour and the ability to balance a system.
Flow capacity (KV) and hysteresis figures are modest and typical for small domestic radiator valves, so this pack is intended for standard radiators and towel rails rather than very large high-flow applications. Because the head is mechanical, it does not provide remote or programmable control — if you require app control or integration with a smart thermostat you’ll need a compatible motorised head or a different product family.
What installers and buyers should note
- The pack contains the thermostatic head, reversible angled valve body, lockshield body, 1/2″ BSP tails, compression fittings (15 mm and 10 mm reducing kit) and decorator caps — check the pack contents before fitting.
- Ensure you fit the valve in the correct orientation (follow the flow/return guidance) and observe the manufacturer’s installation notes; the manufacturer recommends competent installation by a professional.
- If your heating system has unusually high pressures, unusual radiator connection sizes or you plan to fit motorised heads later, check sizing and compatibility before purchase.
Overall, the TRV4PACKCAN is a practical, cost‑effective choice when you need a corner-mounted TRV in an anthracite finish. It gives the familiar, easy-to-use mechanical temperature control of a liquid-sensor TRV with installation flexibility for most domestic radiator and towel rail set-ups.
